Crossword Genius

Unhappy son on notice (3)

Ross

I believe the answer is:

sad

'unhappy' is the definition.
(similar in meaning)

'son on notice' is the wordplay.
'son' becomes 's' (genealogical abbreviation for son).
'on' says to put letters next to each other.
'notice' becomes 'ad' (both can mean an advertisement).
's'+'ad'='SAD'

(Other definitions for sad that I've seen before include "Melancholy or pitiful" , "grey" , "Mournful - sorry" , "Downcast" , "Gloomy" .)

I've seen this clue in The Sun.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.